When heating chemicals that could be volatile, what would be the best way to conduct this experiment?
answer choices
1. at the lab table using a bunsen burner
2. wearing goggles and a lab apron and having the experiment under the ventilation hood
3. wearing goggles at the lab table
4. using a hot plate at the lab table

Dna replication or repair occurs in a cell in all of thw following situations except when

How do you think earths interior affects what is happening on the surface? 2. how do fossils support the continental drift hypothesis? 3. how does sea- floor spreading support the hypothesis of continental drift? 4.what do scientists observe when they studied the magnetic fields of rocks on the sides of mid-ocean ridges? 5. what is a tectonic plate ? 6. explain mantle convection 7.how can movements of the continents affect earths climate? 8. what occurs during drifting?

In guinea pigs, black fur (b) is dominant over white fur (b). cross a heterozygous (hybrid) black guinea pig with a homozygous (purebred) white guinea pig. complete a punnett square, identify the genotype(s), phenotype(s), and probability (% and fraction) that the offspring will be black and white?